An objective determination of a slip with the PIAST
The portable inclineable articulated strut slip tester (PIAST), a slipmeter widely used in the USA, measures coefficient of friction (COF) at the shoe sole and floor interface. A crucial part in operating the PIAST is to determine whether a slip occurs at the measurement interface, which is currently judged subjectively by operators. An objective determination of a slip was developed in this study based on the movement of the weight used by the slipmeter. An objective slip criterion was derived from the displacement of the weight and the time duration of consecutive strikes in a measurement. A wide range of COF values was covered by various footwear materials, floor materials and surface conditions. The results of the regression analysis indicated that the objective COF predicted by the method developed in this study was significant (R2=0.997, p < 0.001) in predicting the subjective COF determined by the operator, with the subjective COF slightly lower than the objective COF.
Wen-Ruey Chang Christopher Brunette Chien-Chi Chang
Liberty Mutual Research Institute for Safety, 71 Frankland Road, Hopkinton, MA 01748 USA Industrial and Systems Engineering Dept., University of Wisconsin, Madison, WI 53706-1572
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-9
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）